{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T19:25:20Z","timestamp":1789586720880,"version":"build-2803163510"},"reference-count":48,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,17]],"date-time":"2025-07-17T00:00:00Z","timestamp":1752710400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Mahasarakham University","award":["N42A670561"],"award-info":[{"award-number":["N42A670561"]}]},{"name":"National Research Council of Thailand (NRCT): High-Potential Research Team Grant Program","award":["N42A670561"],"award-info":[{"award-number":["N42A670561"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Gastrointestinal (GI) parasitic infections in non-human primates are of growing concern due to their implications for both veterinary and public health. Long-tailed macaques (Macaca fascicularis), commonly found in peri-urban and temple environments in Southeast Asia, may act as reservoirs for zoonotic parasites, posing risks to humans and domestic animals. This study investigated the prevalence and species diversity of GI parasites in free-ranging macaques from four provinces in Northeast Thailand (Loei, Khon Kaen, Bueng Kan, and Sisaket). A cross-sectional study was conducted between April and May 2025. A total of 445 fecal samples were examined using two parasitological techniques: agar plate culture (APC) and the formalin\u2013ethyl acetate concentration technique (FECT). The overall prevalence of parasitic infection was 86.5%, with Strongyloides sp. (65.2%) as the most prevalent helminth and Balantioides coli-like (29.5%) and Entamoeba histolytica-like (28.8%) as the predominant protozoa. Other parasites identified included helminths (Trichuris sp., Ascaris sp.) and protozoa (Blastocystis sp., Iodamoeba b\u00fctschlii, Entamoeba coli, and Chilomastix mesnili). Mixed infections were frequently observed, with both helminths and protozoa co-occurring in 37.3% of cases. The high infection rates and parasite diversity reflect substantial environmental contamination and sustained transmission cycles. These findings underscore the importance of integrated surveillance in wildlife populations and the need for One Health-based approaches to minimize zoonotic transmission risks at the human\u2013animal\u2013environment interface.<\/jats:p>","DOI":"10.3390\/ani15142112","type":"journal-article","created":{"date-parts":[[2025,7,17]],"date-time":"2025-07-17T10:33:47Z","timestamp":1752748427000},"page":"2112","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Gastrointestinal Parasitic Infections in Macaca fascicularis in Northeast Thailand: A One Health Perspective on Zoonotic Risks"],"prefix":"10.3390","volume":"15","author":[{"given":"Teputid","family":"Kuasit","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manachai","family":"Yingklang","sequence":"additional","affiliation":[{"name":"Faculty of Public Health, Burapha University, Chonburi 20131, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Penchom","family":"Janwan","sequence":"additional","affiliation":[{"name":"Department of Medical Technology, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6726-3759","authenticated-orcid":false,"given":"Wanchai","family":"Maleewong","sequence":"additional","affiliation":[{"name":"Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand"},{"name":"Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4789-297X","authenticated-orcid":false,"given":"Weerachai","family":"Saijuntha","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand"},{"name":"Biomedical Science Research Unit, Mahasarakham University, Maha Sarakham 44000, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siriporn","family":"Kuanamon","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2604-0281","authenticated-orcid":false,"given":"Tongjit","family":"Thanchomnang","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand"},{"name":"Biomedical Science Research Unit, Mahasarakham University, Maha Sarakham 44000, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Rahman, M.T., Sobur, M.A., Islam, M.S., Ievy, S., Hossain, M.J., El Zowalaty, M.E., Rahman, A.T., and Ashour, H.M. 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